Robert noble adams



(N9 Mode l R. N. ADAMS. PAPER TRIMMING MACHINE.

Patented July 6, 1897..

NlTED STATES ROBERT NOBLE ADAMS, OF DUNEDIN, NEW ZEALAND.

PAPER-TRIMMING MACHINE. I

SPECIFICATION forming part of Letters Patent No. 585,998, dated July 6, 1897.

Application filed October 80, 1896. Serial No. 610,598. (No model.) Patented in New Zealand December 10, 1894,11'0. 7,332.

To all whom, it may concern.-

Be it known that I, ROBERT NOBLE ADAMS, publisher, a subject of the Queen of Great Britain, residing at 31 Moray Place, Dunedin, in the British Colony of New Zealand, have invented a new and useful Paper-Trimming Machine, (for which I have obtained a patent in the Colony of New Zealand, No. 7,332, bearing date December 10, 1894,) of which the following is a specification.

My invention relates to improvements in machinery for paper-trimming, in which paper in the form of sheets, pamphlets, newspapers, and such are passed between rollers and have their edges trimmed by circular knives revolving with and at the ends of the rollers, which can be adjusted to the required sizes of thepaper, as far as the top and bot tom edges are concerned, and if the front edge is also to be trimmed, the paper is passed through another pair of rollers fixed at right angles to the first pair by automatic action and is delivered out at the side of the machine.

Referring to the accompanying drawings, Figure 1 is a sectional elevation of the ma chine with part of the framing removed to show the passage of the paper between the tapes to the knives more clearly. Fig. 2 isa plan of the entire machine, showing the rollers with the circular knives at both ends for trimming the top and bottom edges of the paper and also the rollers at right angles, having one pair of knives for trimming the front edge of the paper. Fig. 3 shows the arrangement of feed -rollers, pulleys, and tapes for the second set of rollers. Fig. 4: represents a detail view of the main rollers and knives, showing a method whereby the top rollers may be released in case the machine is over fed. "Fig. 5 is a detail view showing another manner of gearing the shafts together which carry the rollers, as well as another mode of keeping the circular knives in contact with each other.

Similar letters refer to similar parts throu ghout the several views. 7

A and B represent broad rollers mounted upon the shafts a and b, respectively. The rollers A are adjustable on the shaft a, being adapted to be fixed in different positions along the length of the shaft in accordance with the size of paper to be out, while the rollers B are loose on the shaft 19 and are kept in contact with the studs D, carried by the rollers B by the springs C. On the outer faces of the rollers A and B are mounted the circular knives K and K, respectively, the knives K being ground to a more acute edge than knives K. The cutting edges of these knives are kept in contact with each other by the tension of the springs O, which, being attached to the rollers B and the loose rollers B, tend to pull the latter inward, which accomplishes the desired end. The shaft 1) is mounted in the bearing-blocks C which are carried by the frames uprights M.

Above the blocks C are the springs 0, so arranged that when an abnormal upward pressure is exerted on the shaft 1) the same will rise against the tension of the springs and again return to its normal position when the pressure is released. A represents narrow rollers adjustable on the shaft a. The stops or lugs D prevent the knives K from riding on the rollers A. Power being applied to the pulley G it is transmitted to the roller G and thence by the bands E to the rollers B and B The tension of the belts E is regulated by the rollers H, carried by the arms L, mounted in the adjustable holders L. The power is then transmitted from the roller G to the bands E, which pass over the rollers G, G, A, and A andhas its tension regulated by the roller 1-1.

At one end of the shaft (6 is mounted a beveled gear N, which meshes with a similar gear N, mounted on the shaft a at right angles to the shaft or. This shaft Ct carries the rollers A and A adjustable on the said shaft, and one of the rollers A carries the circular knife K". This shaft Ct also carries a gear-wheel P, meshing with a second gearwheel P, the latter being mounted above the former on the shaft Z). This shaft 12 carries the rollers Band 13 one of which rollers B is loose 011 the shaft and carries the circular knife K, the cutting edge of which is kept in contact with the more obtusely-ground knife K by means of the spring 0, carried by the roller B and attached to the roller B. Stops D are in this case provided, as before explained, for preventing the knife K from riding on the roller A.

The paper is fed from a table to the bands E against the guide F, thence under the roller G to the rollers A and B,A and B where the edges are trimmed by the circular knives and the paper then carried along until 5 it reaches the rollers J, when it is stopped.

The paper is then in the position as shown at S in Fig. 3, over the rollers G and under the roller R. These rollers R are carried upon arms L, attached to the yokes L mounted on the cams Q, so that once in every revolution of the cams the rollers R descend and press the edge of the paper between the bands E and E which then draw the paper in and carry it to the rollers A B and A B when the front edge of the paper is trimmed by the circular knives. It will be noticed that the action of these knives is similar to that of scissors and no fragments will be left along the edge of the paper.

In Fig. 5 is shown an arrangement whereby the knife K is driven faster than the lower knife K by mounting a smaller gear P on the shaft b and a larger one on the shaft a than P and P, respectively. In this same figure is also shown another mode of keeping the knife K in contact with the lower knife K". This is done simply by inserting a spring-washer 7c between the knife K and the nut or adjustable shoulder screwthreaded on the shaft 1).

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. In a paper-trimming machine the combination with a plurality of shafts, of rollers adj-ustably mounted thereon, rollers mounted loosely on shafts above certain of said adjustable rollers, a circular knife carried on the outer face of each of the said loose rollers, a circular knife mounted on the outer face of each of the said adjustable rollers directly beneath the said loose rollers, springs attached to said loose rollers and to the adjustable rollers on the same shaft therewith, means for preventing the upper knives from riding on the rollers beneath them, a shaft mounted at an angle to one of the aforesaid shafts and geared thereto, adjustable rollers mounted on said shaft, circular knives carried by certain of said adjustable rollers, a loose roller mounted above one of said adjustable rollers carrying a circular knife, a circular knife carried on the outer face of said loose roller, adjustable rollers carried on the same shaft with said loose roller, and means for keeping the circular knives in contact with each other and preventing the top knives from riding on the rollers beneath them, rollers and bands for feeding the paper to the said knives and means for periodically forcing the paper after being cut by the first set of rollers between the bands and rollers for carrying it to the second set, substantially as described.

2. In a paper-cutting machine the combination with the adjustable rollers A and A of circular knives carried on the outer faces of the rollers A, the loose rollers B mounted above the said adjustable rollers, circular knives carried on the outer faces of the said loose rollers, adjustable rollers B mounted between said loose rollers, springs carried by said adjustable rollers and connected to the said loose rollers for keeping the knives in contact with each other, stops carried by the said ad justable rollers for preventing the said loose rollers from riding, yielding bearings in which the shaft that carries loose rollers is journaled, a shaft a mounted at an angle with the aforesaid shafts and geared with one of the same, the rollers A and A mounted on the said shaft, a circular knife carried by one of the rollers A, a gear-wheel carried by the shaft a, a second gear-wheel meshing with and mounted above the first, a shaft carrying the said second gear-wheel, adjustable and loose rollers carried by the said shaft, a circular knife carried by the said loose roller, means for keeping the upper circular knife in contact with the lower knife and for preventing saidupper knife from riding the lower knife, a plurality of rollers and bands for feeding the paper to the knives, a plurality of arms L rollers mounted on said arms, yokes attached to said arms, cams actuating said yokes so as to force the paper to be out between the feed rollers and bands leading to the second set of knives, substantially as described.

3. In a paper-cutting machine the combination with the adjustable roll-ers A and A of circular knives carried on the outer faces of the rollers A, the loose rollers B mounted above the said adjustable rollers, circular knives carried on the outer faces of the said loose rollers, adjustable rollers B mounted between said loose rollers, springs carried by said adjustable rollers and connected to the said loose rollers for keeping the knives in contact with each other, stops carried by the said adjustable rollers for preventing the said loose rollers from riding, yielding bearings in which the shaft that carries the loose rollers is journaled, a shaft a mounted at an angle with the aforesaid shafts and geared with one of the same, the rollers A and A mounted on the said shaft, a circular knife carried by one of the rollers A, a gear-wheel carried by the shaft a, a second gear-Wheel meshing with and mounted above the first, a shaft carrying the said second gear-wheel, adjustable and loose rollers carried by the said shaft, a circular knife carried by the said loose roller, means for keeping the upper circular knife in contact with the lower knife and for preventing said upper knife from riding the lower knife, a plurality of rollers and bands for feeding the paper to the knives, a plurality of adjustable holders mounted above the shafts carrying the loose and adjustable rollers aforesaid, arms mounted in said holders, rollers carried by said arms for giving tension to the said hands, a plurality of arms L rollers mounted on said arms, yokes attached to said arms, cams actuating Lil saidyokes so as to force the paper to be out between the feed rollers and bands leading to the second set of knives, substantially as described.

4. In a paper-cutting machine the combination With the adjustable rollers A and A of circular knives carried on the outer faces of the rollers A, the loose rollers B mounted above the said adjustable rollers, circular knives carried on the outer faces of the said loose rollers, adjustable rollers 13 mounted between said loose rollers, springs carried by i said adjustable rollers and connected to the said loose rollers for keeping the knives in contact with each other, stops carried by the said adjustable rollers for preventing the said loose rollers from riding, yielding bearings in Which the shaft that carries the loose rollers is journaled, a shaft a mounted at an angle with the aforesaid shafts and geared with one of the same, the rollers A and A mounted on the said shaft, a circular knife carried by one of the rollers A, a gear-Wheel carried by the shaft a, a second gear-Wheel meshing with and mounted above the first, a shaft carrying the said second gear-Wheel, ad-

justable and loose rollers carried by the said shaft, a circular knife carried by the said loose roller, an adjustable shoulder carried upon the shaft with the said loose pulley, a spring Washer inserted between the said shoulder and the circular knife for keeping the upper circular knife in contact with the lower knife and means for preventing said upper knife from riding the lower knife, a plurality of rollers and bands for feeding the paper to the knives, a plurality of adjustable holders mounted above the shafts carrying the loose and adjustable rollers aforesaid, arms mounted in said holders, rollers carried by said arms for giving tension to the said bands, a plurality of arms L rollers mounted on said arms, yokes attached to said arms, cams actuating said yokes so as to force the paper to be out between the feed rollers and bands leading to the second set of knives, substantially as described.

ROBERT NOBLE ADAMS.

W itncsses:

I-IENToN MACAULAY DAVEY, J. E. SMITH. 

